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pepegonza (Petroleum)
30 Jan 01 6:01
I would like to share experience in running high TAN crudes like Kuito (from Angola) and Marlim (from Brazil).
masg (Petroleum)
6 Feb 01 11:59
We don't run those crudes. Our TAN limit is 0.5 on mixed crude charge. We're eyeing a metallurgical upgrade to 317L throughout our atmospheric and vacuum gas oil systems so we can increase the TAN and charge less expensive crude. We'd be replacing carbon steel, 5 and 9 chrome, and 410 SS clad systems. The post project mixed crude TAN limit would be about 0.7, low enough to keep non 317 alloy systems from exceeding 500 degF and 1.0 TAN.
Steve Grzywa
sgrzywa@citgo.com
vikkyr (Chemical)
24 Dec 02 7:04
Can you explain me, what is TAN? 字串9
vikas
StressGuy (Mechanical)
26 Dec 02 12:18
The stress engineers and piping designers who do that job are going to have a good bit of work on their hands with that upgrade, especially going from chrome to stainless. I've been through a few of those and they make for some tough rework. Edward L. Klein
Pipe Stress Engineer
Houston, Texas
All opinions expressed here are my own and not my company's.
TD2K (Chemical)
26 Dec 02 12:25
TAN - total acid number.
try
25362 (Chemical)
13 Jan 03 6:14
upgrading metallurgy is the long-term approcah. Some refiners think that injecting filming/neutralizing corrsion inhibitors are more cost effective.
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